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A simple endless platformer game built as a single-file HTML5 capability demo.

Description

An endless side-scrolling platformer where the player avoids walls to increase their score, similar to Flappy Bird mechanics. The project was built as a self-contained HTML5 Canvas game with no external dependencies, generated through an AI chat interface.

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Details

Why this is interesting: Demonstrates the capability of Step 5 Preview to generate a functional, playable HTML5 platformer in just two prompts.
Attributed to: ulknowns@ulknown15aki
Built with: Step 5 Preview
Tags: #platformer #html5 #canvas #endless-runner

Discovered: X
First posted: X · Oct 9, 2026
Listed: Added 2h ago
Build: Moderate
Models: Strong

Prompt

Project: A Simple Web Game
Goal: A Platform game, infinity length(like flappy bird) and score will count when player moving forward
Decision: You can pick between html or react.js (no limit to think)

Source

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Description

How it grew

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Description

How it grew